{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Treatment", "Subject.Disorder", "Treatment.Duration", "Combination.Drug", "Subject", "Subject.Age", "Subject.Gender", "Subject.Population", "Subject.Race", "Treatment.Disorder", "Treatment.Freq", "Treatment.Route", "Treatment.Time_elapsed", "Effect", "Treatment.Dosage"]}], "input": "A 56-year-old white male had been receiving chronic warfarin therapy for 11 years after mechanical heart valve replacement."}
{"potential therapeutic event": [{"Treatment": "chronic warfarin therapy for 11 years after mechanical heart valve replacement", "Subject.Disorder": "NAN", "Treatment.Duration": "NAN", "Combination.Drug": "NAN", "Subject": "A 56-year-old white male", "Subject.Age": "56-year-old", "Subject.Gender": "male", "Subject.Population": "NAN", "Subject.Race": "white", "Treatment.Disorder": "NAN", "Treatment.Freq": "NAN", "Treatment.Route": "NAN", "Treatment.Time_elapsed": "NAN", "Effect": "NAN", "Treatment.Dosage": "NAN"}]}